ASAHI KASEI
[AK6004A/08A]
(3) A.C. ELECTRICAL CHARACTERISTICS 1: Standard mode
(1.8V≤VCC≤5.5V, -40°C≤Ta≤85°C, unless otherwise specified)
Parameter
SCK Clock Frequency
Noise Suppression Time
Constant at SCL, SDA
*5
SCL Low to
SDA Data Out Valid: SDA
Time the Bus Must be Free
before a New Transmission
can start
Start Condition Hold Time
Clock Low Period
Clock High Period
Start Condition Setup Time
Data in Hold Time
Data in Setup Time
SDA and SCL Rise Time
*5
SDA and SCL Fall Time
*5
Stop Condition Setup Time
Data Out Hold Time
Write Cycle Time
*4
*4: The write cycle time (tWR) is the time from a valid stop condition of a write
sequence to the end of the internal program cycle.
Since the device will not acknowledge during the internal program cycle, this can be
used to determine when the cycle is complete. This feature (ACK polling) can be
used to maximize bus throughput.
*5: The parameter is periodically sampled and not 100% tested.
tF
tSU:STO
tDH
tWR
4.0
100
10
0.3
µs
µs
ns
ms
Symbol
fSCL
tI
tAA1
tAA2
tAA3
tBUF
Condition
Min.
Max.
100
100
3.5
3.5
4.5
Unit
KHz
ns
µs
µs
µs
µs
4.5V≤VCC≤5.5V
2.5V≤VCC<4.5V
1.8V≤VCC<2.5V
0.2
0.3
0.3
4.7
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
4.0
4.7
4.0
4.7
0
250
1.0
µs
µs
µs
µs
µs
ns
µs
DAI01E-02
- 13 -
2002/11
AKM [ ASAHI KASEI MICROSYSTEMS ]
